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RDG Ball-turning attachment

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Zephyrin:
For me, using form tools with the lathe is the most pleasing moment of a workshop session...
I have lots of brass blanks for taps or other fittings left over because I always make more than I need.
you also make your own desired and personal profile, and be certain to have all the same parts.

https://photos.app.goo.gl/Wer5KkTknrEZjdxp6
https://photos.app.goo.gl/HCzF5pnjENWHTa9G9

Allen Smithee:

--- Quote from: Jasonb on December 03, 2025, 10:11:07 am ---As the Hemmingway one just mounts in the tool post you can raise and lower the axis just as you would to set a tool on Ctr height. Might need to get a bit inventive if it is offset a lot but just having some additional holes in the body so the clamping block can be positioned further up or down would cover most cases.

--- End quote ---

You can, but only over a limited range. A horizontal axis tool can allow much greater offset and I'm often want to do ogival shapes like this which are easily done with a vertical axis tool but more of a faff to do by raising the toolpost:



So I probably have a use for both options because for most other uses the horizontal axis one is much easier/quicker to set up (especially when mounted in a QCTP holder!).

AS

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